Letter

Estimation of body composition by bioelectrical impedance in HIV-infected children

To the Editor:

We read with interest the article by Arpadi et al. ¹ and the related editorial ² on the use of bioelectrical impedance (BIA) in HIV-infected children. Both reports are suitably cautious in their conclusions with respect to the validity of BIA. The conclusion that it is necessary to develop BIA prediction equations that are specific to HIV-infected children is perhaps premature. BIA prediction equations are highly population-specific, ³ so the observation that several prediction equations